+static int vidioc_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
+{
+ struct saa7134_fh *fh = f;
+ struct saa7134_dev *dev = fh->dev;
+
+ if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
+ return -EINVAL;
+ crop->c = dev->crop_current;
+ return 0;
+}
+
+static int vidioc_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
+{
+ struct saa7134_fh *fh = f;
+ struct saa7134_dev *dev = fh->dev;
+ struct v4l2_rect *b = &dev->crop_bounds;
+
+ if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
+ return -EINVAL;
+ if (crop->c.height < 0)
+ return -EINVAL;
+ if (crop->c.width < 0)
+ return -EINVAL;
+
+ if (res_locked(fh->dev, RESOURCE_OVERLAY))
+ return -EBUSY;
+ if (res_locked(fh->dev, RESOURCE_VIDEO))
+ return -EBUSY;
+
+ if (crop->c.top < b->top)
+ crop->c.top = b->top;
+ if (crop->c.top > b->top + b->height)
+ crop->c.top = b->top + b->height;
+ if (crop->c.height > b->top - crop->c.top + b->height)
+ crop->c.height = b->top - crop->c.top + b->height;
+
+ if (crop->c.left < b->left)
+ crop->c.left = b->left;
+ if (crop->c.left > b->left + b->width)
+ crop->c.left = b->left + b->width;
+ if (crop->c.width > b->left - crop->c.left + b->width)
+ crop->c.width = b->left - crop->c.left + b->width;
+
+ dev->crop_current = crop->c;
+ return 0;
+}
+